///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2011-02-21
// Updated : 2009-02-21
// Licence : This source is under MIT License
// File    : glm/gtx/ulp.hpp
///////////////////////////////////////////////////////////////////////////////////////////////////
// Dependency:
// - GLM core
///////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef glm_gtx_ulp
#define glm_gtx_ulp

// Dependency:
#include "../glm.hpp"

#if(defined(GLM_MESSAGES) && !defined(glm_ext))
#	pragma message("GLM: GLM_GTX_ulp extension included")
#endif

namespace glm
{
	namespace gtx{
	//! GLM_GTX_ulp extension: Precision calculation functions
	namespace ulp
	{
		/// \addtogroup gtx_ulp
		///@{

		//! Return the next ULP value(s) after the input value(s).
		//! From GLM_GTX_ulp extension.
        template <typename genType>
        genType next_float(genType const & x);
        
		//! Return the previous ULP value(s) before the input value(s).
		//! From GLM_GTX_ulp extension.
        template <typename genType>
        genType prev_float(genType const & x);

		//! Return the value(s) ULP distance after the input value(s).
		//! From GLM_GTX_ulp extension.
        template <typename genType>
        genType next_float(genType const & x, uint const & Distance);
        
        //! Return the value(s) ULP distance before the input value(s).
		//! From GLM_GTX_ulp extension.
        template <typename genType>
        genType prev_float(genType const & x, uint const & Distance);
        
        //! Return the distance in the number of ULP between 2 scalars.
		//! From GLM_GTX_ulp extension.
        template <typename T>
        uint float_distance(T const & x, T const & y);
        
        //! Return the distance in the number of ULP between 2 vectors.
		//! From GLM_GTX_ulp extension.
        template<typename T, template<typename> class vecType>
        vecType<uint> float_distance(vecType<T> const & x, vecType<T> const & y);
        
		///@}

	}//namespace ulp
	}//namespace gtx
}//namespace glm

#include "ulp.inl"

namespace glm{using namespace gtx::ulp;}

#endif//glm_gtx_ulp

